We all know that, __________, the situation will get worse.
______ made the school proud was ______ more that 90% of the students had been admitted to key universities.
There is a new problem involved in the popularity of private cars ____________ road conditions need ____________.
It is pretty well understood __________controls the flow of carbon dioxide in and out the atmosphere today.
Barack Obama told millions ______ him that his grandmother's influence on ______ he is and the way he views the world was significant.
There is no ________ thinking more about the matter. Take it easy.